Google Nest Community

Hi I've installed this thermostat, heating works using the USB cable, I have 11.94v coming out the t1 and t2 and at the base but when it's attached coming up with no power to the thermostat, cable is fine as there is 11.94v at the cable end, can anyo...

Hi I've bought a new Nest 3rd gen Learning, I've connected it up and got power to the heat link and wordlessly connected to the thermostat but the thermostat was running on its battery and there's no voltage coming of the t1 and t2 terminals, I have ...